Moto Guzzi Robin Spark plug replacement

Looking to see what others are running for spark plugs on there Robins. I downloaded the owners manual and it said nothing about what spark plug should be in there. I slapped a NGK BH7 in there and runs good. However it is about a 1/4 - 1/2 inch shorter than the old Bosch I pulled out of there..

What are you guys running and does plug depth (how far it reaches into the cylinder) affect performance ??

Re: Moto Guzzi Robin Spark plug replacement

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